Porter, M. E. (1998). Competitive advantage: Creating and sustaining superior performance : with a new introduction. Free Press.
Цитирование в стиле Чикаго (17-е изд.)Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance : With a New Introduction. New York: Free Press, 1998.
Цитирование MLA (9-е изд.)Porter, Michael E. Competitive Advantage: Creating and Sustaining Superior Performance : With a New Introduction. Free Press, 1998.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.